1. ECVAM, JRC Environment Institute, 21020 Ispra (Va), Italy
2. RITOX, Utrecht University, P.O. Box 80.176, 3508 TD Utrecht, The Netherlands
3. Procter & Gamble Health & Beauty Care Europe, Rusham Park, Whitehall Lane, Egham, Surrey TW20 9NW, UK
4. FRAME, Russell & Burch House, 96–98 North Sherwood Street, Nottingham NG1 4EE, UK
5. Department of Pharmaceutical Biosciences, Uppsala University, Division of Toxicology, Box 594, S-751 24 Uppsala, Sweden
6. Department of Health, HEF(M) Division, Skipton House, 80 London Road, London SE1 6LW, UK
7. INSERM U49, Unité de Recherches Hépatologiques, Hôpital Pontchaillou, 35033 Rennes, France
8. ZENECA Central Toxicology Laboratory, Alderley Park, Macclesfield, Cheshire SK10 4TJ, UK
9. BIBRA International, Woodmansterne Road, Carshalton, Surrey SM5 4DS, UK
10. SIAT — In Vitro Toxicology, Technopark, Pfingstweidstrasse 30, CH-8005 Zurich, Switzerland
11. National Institute of Toxicology, P.O. Box 863, 41080 Seville, Spain
12. Department of Transplantology, Institute of Biostructure/Medical School, Chalubinskiego 5, 02-004 Warsaw, Poland
13. ZEBET, Bundesinstitut für gesundheitlichen Verbraucherschutz und Veterinärmedizin (BgVV), Diedersdorfer Weg 1, D-12277 Berlin, Germany
14. Biomedical Technologies Institute — CNR, Via GB Morgagni 30/E, 00161 Rome, Italy